Preheat oven to gas mark 4.

Cream the butter with the sugar with an electric whisk for at least 2 mins.

Whisk in the eggs.

Sieve the flour and cinnamon into the mixture and fold in. Add the chopped apple by folding in too

Place in a greased or silicon loaf tin and bake for 1hr 45mins. Put a skewer in the middle of cake to see if it comes out clean. If not cooked give it 5 mins longer.

After cooled for 10 mins place cake on a wire rack. When completely cooled decorate on top if desired